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Issue 4804: Notify chain selection of concluded disputes directly (#6512)

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* Setting up new ChainSelectionMessage

* Partial first pass

* Got dispute conclusion data to provisioner

* Finished first draft for 4804 code

* A bit of polish and code comments

* cargo fmt

* Implementers guide and code comments

* More formatting, and naming issues

* Wrote test for ChainSelection side of change

* Added dispute coordinator side test

* FMT

* Addressing Marcin's comments

* fmt

* Addressing further Marcin comment

* Removing unnecessary test line

* Rough draft addressing Robert changes

* Clean up and test modification

* Majorly refactored scraper change

* Minor fixes for ChainSelection

* Polish and fmt

* Condensing inclusions per candidate logic

* Addressing Tsveto's comments

* Addressing Robert's Comments

* Altered inclusions struct to use nested BTreeMaps

* Naming fix

* Fixing inclusions struct comments

* Update node/core/dispute-coordinator/src/scraping/mod.rs

Add comment to split_off() use

Co-authored-by: Marcin S. <marcin@bytedude.com>

* Optimizing removal at block height for inclusions

* fmt

* Using copy trait

Co-authored-by: Marcin S. <marcin@bytedude.com>
This commit is contained in:
Bradley Olson
2023-01-18 18:06:34 -08:00
committed by GitHub
parent de7378efe7
commit 90aa798b76
12 changed files with 537 additions and 46 deletions
Download Patch File Download Diff File Expand all files Collapse all files
polkadot/node/core/chain-selection/src/lib.rs
+19
View File
@@ -466,6 +466,10 @@ where
let _ = tx.send(best_containing);
}
ChainSelectionMessage::RevertBlocks(blocks_to_revert) => {
let write_ops = handle_revert_blocks(backend, blocks_to_revert)?;
backend.write(write_ops)?;
}
}
}
}
@@ -678,6 +682,21 @@ fn handle_approved_block(backend: &mut impl Backend, approved_block: Hash) -> Re
backend.write(ops)
}
// Here we revert a provided group of blocks. The most common cause for this is that
// the dispute coordinator has notified chain selection of a dispute which concluded
// against a candidate.
fn handle_revert_blocks(
backend: &impl Backend,
blocks_to_revert: Vec<(BlockNumber, Hash)>,
) -> Result<Vec<BackendWriteOp>, Error> {
let mut overlay = OverlayedBackend::new(backend);
for (block_number, block_hash) in blocks_to_revert {
tree::apply_single_reversion(&mut overlay, block_hash, block_number)?;
}
Ok(overlay.into_write_ops().collect())
}
fn detect_stagnant(
backend: &mut impl Backend,
now: Timestamp,